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https://issues.apache.org/jira/browse/MATH-380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luc Maisonobe resolved MATH-380.
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Resolution: Fixed
fixed in subversion repository as of r1176745.
> Need to (re)initialize dYdY0 for multiple integrate with
> FirstOrderIntegratorWithJacobians
> ------------------------------------------------------------------------------------------
>
> Key: MATH-380
> URL: https://issues.apache.org/jira/browse/MATH-380
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.1
> Reporter: Pascal Parraud
> Assignee: Luc Maisonobe
> Priority: Minor
> Fix For: 3.0
>
>
> There is a lack in the method integrate of FirstOrderIntegratorWithJacobians.
> The jacobian DYDY0 can't be initialized by the user, unlike DFDP with DF0DP.
> So, for several successive integrations, the matrix is reinitialized to
> identity and that is not what we might want.
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